weather center
Lincoln Creek - Milwaukee

Volume Treated Data

MMSD has captured and cleaned 98.4% of all the water and wastewater that's entered the regional sewer system since we started operating the Deep Tunnel in 1994. The goal nationally is an 85% capture and clean rate for the more than 700 cities with sewer systems like ours.
This Year's Volume Treated Statistics
District Gallons Treated
District Gallons Overflowed
District Total Gallons
District % Treated


Volume Treated measures how much water and wastewater MMSD captures and treats by year versus the amount that the District releases from its sewers to area waterways untreated during heavy rain storms to prevent basement backups.